Gem-setting.



J. S.' BRANT.

GEM SETTING.

APPLIOATION FILED SEPT. 9, 1909.

[972 mm Patented Oct. 18,1910.

UNITED STATES PATENT OFFICE;

JOHN S. BRANT, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO CORY & REYNOLDSCOMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.

GEM-SETTIN G.

Specification of Letters Patent.

Patented Oct. 18, 1910.

Application filed September 9, 1909. Serial No. 516,933.

To all whom it may concern.

Be it known that I, JOHN S. BRANT, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in Gem-Settings, of which the following isa specification.

This invention relates to improvements in gem-settings for jewelry, andit consists in certain novel features of construction and combination,all as hereinafter fully set forth and claimed.

Primarily the object sought to be attained is to provide articles ofjewelry, such for example as stick-pins, brooches, cuff-buttons, fingerrings, etc., with a simple, inexpensive, safe, strong and solder-lessgem-setting.

The device may, if desired, be readily adapted and employed for holdinginterchange able stones or gems, that is, stones having differentcolors, qualities or characteristics, but having the bottom edgesthereof alike in form and size.

The setting is well adapted for removably holding gems of the class inwhich their brilliancy is due to light rays refracted wholly from thefront, and also to gems of the transparent and translucent class.

In the accompanying sheet of drawings, Figure 1 represents a frontelevation of a sticlcpin embodying the present invention. Fig. 2 is acorresponding elevation, viewed from the back. Fig. 8 is a frontelevation of the base member of the setting, detached. Fig. 4: is asimilar view of the base, slightly modified. Fig. 5 is a transversesectional view, taken on line 5 5 of Fig. Fig. (3 is a similar viewtaken on line 6 6 of Fig. 4. Fig. 7 represents the flat blankfrom whichthe back member of the setting is formed. Fig. 8 is an edge view of it.Fig. 9 is a transverse section taken substantially on line 8 8 of Fig.7, showing the blank partly bent. Fig. 10 is a similar view, showing theblank and its prongs bent preparatory to being positioned at the back ofthe base. Fig. 11 is a top plan view corresponding with Fig. 10. Fig. 12is a similar view, showing the back member provided with a large openingtherethrough. Fig. 13 is an enlarged trans verse section taken on line13 13 of Fig. 1; and Fig. 14: is a similar sectional View, showing thestone seated in the base and back members, constructed substantially asshown in Figs. 4 and 12.

In my improved gem-setting, indicated by A in the drawings, I employonly a base member a and back member I), or 6 the same beingconstructed, arranged and adapted when in use to interlock with eachother and with the gem, stone or other ornament, g. The base member a,which also constitutes the front of the device, is or may be swaged orpressed from comparatively thick metal stock to the desired form andornamentation by means of proper tools.

A suitably shaped large central opening a is pierced through the base.The latter is also provided with a front rib or bead (5 preferablyconforming to the shape of said opening, its inner edge merging into aninwardly projecting lip or flange a constituting a recessed seat adaptedto support the gem 9. At suitable intervals around the said seatportion, the latter and also the said rib a are pierced with narrownotches 0, extending outwardly or radially and being in open connectionwith the opening a all as clearly represented. The said back member 6 isformed from the fiat, thin sheet-metal blank m, shown in Figs. 7 and 8.It is provided with a number of radially extending integral arms orprongs 72 positioned or disposed so as to register with said recesses ornotches o of the base (1 The body portion of the member 6 issubstantially concavo-convex cross-sectionally, its form and size beingsuch that when viewed from the rear it practically covers and concealsthe said notched openings formed in the base, as represented in Fig. 2.

The prong members 79 may be bent upwardly and inwardly, as indicated inFigs. 9 to 12, thereby adapting the part b to then be readily applied toand bear against the rear of the base; after which the prongs are bentoutward or rearwardly into and through the respective notches 0, so asto stand substantially vertical. or perpendicular to the face of thebase, the enlarged part 79 formed at the free end of each prong at thesame time preventing the member I) from dropping out. The stone or gemg,having the periphery of its base part conforming to the shape of theinner edge of the rib a is next positioned upon the seat or lip afollowed by bending the several prongs inward and downward snugly uponthe adjacent exposed part of the stones, substantially as shown in Figs.1 and 13.

The base member a may be provided with a relatively narrow lip or seat,a extending inwardly from the rib part a as clearly shown in Figs. 4 and6.

While the imperforate back member 7) may be employed, as shown in Figs.1, 11 and 13, I prefer in some cases to use the pronged skeleton member6 provided with a large opening h, as represented in Fig. 12. This backmember is more particularly adapted, however, for use when it isdesirable to per mit the passage of light rays therethrough from therear to increase the brilliancy of the stone seated in the setting. Seecorresponding sectional view, Fig. 14.

This improved gem-setting is inexpensive to manufacture, the parts beingdevised and constructed so as to be readily and quickly assembled, andas readily adapted to receive a stone or gem and securely hold ittherein. By simply bending the prongs rearwardly from the stone, say tothe vertical position indicated by dotted lines in Figs. 13 and 14, thestone can be quickly removed and another substituted at will, followedby bending the prongs inwardly to secure it in place.

What I claim as my invention is 1. In a gem setting, the combination ofa body provided with a central orifice, and with recesses opening intothe orifice, a

frame resting against the back of the body, and prongs upon the frameregistering in the recesses and adapted to engage a gem.

2. In a gem setting, the combination of a relatively thick base memberhaving a central opening therethrough, a thin, narrow flange or lipforming a depressed seat provided with a plurality of lateral recessesextending therethrough and being in direct communication with theopening, the inner edge of the flange constituting the perimeter of saidopening, a plate bearing against the back of the base member, and prongsintegral with the plate adapted to extend through said recesses toengage a gem.

3. In a gem setting, the combination with a base member having a centralopening, a depressed seat, and a plurality of lateral recesses extendinginto the opening, of a removable plate member bearing against the backof the said base, prongs integral with the plate extending through therecesses to engage a gem, and having the outer or free ends of theprongs wider than the recesses, for the purpose hereinbefore set forth.

In testimony whereof I have aflixed my signature, in presence of twowitnesses.

JOHN S. BRANT.

lVitnesses GEO. I-I. REMINGTON, HENRY P. STONE.

